Quote:
Originally Posted by CraigD
On of the simplest ways to turn a wheel with a rubber band is to attach a spool wheel to the rolling wheels axle, wrap a strong thread around it, attach the other end of the thread to the rubber band (with a dowel or padding to assure that the thread doesn’t cut the band), stretch the band as far as possible, and attach it to a peg or hook on the car’s chassis.
The contest rules state “Transferring the energy of the rubber band to wheels via gears, fly wheels, etc., is encouraged.”. This is a strong hint. While a spool-on-axle transmission is very simple, it isn’t the most efficient possible scheme, especially for a fairly heavy car on a carpeted floor with an inconstant power supply (a rubber band). A more effective transmission could use an eccentric spool.
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I really appreciate doing this for me, but could you please tell me with more detail about what a spool wheel, or eccentric spool is and how to use the thread.. I've tried googling it but i had little out come. Thanks!
What I think you're saying is put a circly thing with little hooks on the axle (the metal thing that goes across), then put a hook on the chassi, hook then stretch the rubberband and wind it up.. am I correct?
Also, could you tell me the MOST effective way to get the energy of the rubberband to go to the car?
